Pm
Promethium-126
Protons (Z)
61
Neutrons (N)
65
Mass number
126
Half-Life
500.0 ms
Abundance
---
Mass
125.957 u
Mass Excess
-39,750.0 keV
Spin
---
Discovered
---
Binding energy per nucleon
8,008 keV
Neutron separation energy
---
Proton separation energy
-1,031 keV
Decay Mode
Decay chain
- PmPromethium-126Z 61 · N 65500.0 ms
- β⁺
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%